Service manual

3-16 AlphaServer DS20 Service Manual
3.8 Failure Register
This register, on the I
2
C bus, is locked when there is a power supply or fan
failure. Together with the Function Register, fan and power supply failures are
identified and reported to the operating system thus notifying it that the system
will shut down in 30 seconds. The results of reading this register are displayed by
the SRM show power console command.
I
2
C Bus Address 0111000
Access Read Only
12345670
PK1420-99
Reserved
Reserved
Reserved
PS1_PRESENT_L/FAN TRAY
Reserved
C/SFAN0_
L
C/SFAN1_L
PS0_PRESENT_L
11 11